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Solr-powered search for Ruby objects

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README.rdoc

sunspot

github.com/outoftime/sunspot

Sunspot is a Ruby library for expressive, powerful interaction with the Solr search engine. Sunspot is built on top of the solr-ruby gem, which provides a low-level interface for Solr interaction; Sunspot provides a simple, intuitive, expressive DSL backed by powerful features for indexing objects and searching against them.

Sunspot is designed to be easily plugged in to any ORM, or even non-database-backed objects such as the filesystem.

Sunspot is currently under active development and is not feature-complete.

Sunspot already has these features:

  • Define indexing strategy for each searchable class using intuitive block-based API

  • Clean separation between keyword-searchable fields and fields for scoping/ordering

  • Define fields based on existing attributes or “virtual fields” for custom indexing

  • Indexes each object's entire superclass hierarchy, for easy searching for all objects inheriting from a parent class

  • Intuitive DSL for scoping searches, with all the usual boolean operators available

  • Intuitive interface for requesting facets on indexed fields

  • Extensible adapter architecture for easy integration of other ORMs or non-model classes

  • Full compatibility with will_paginate

  • Ordering

Sunspot will have these features:

  • Adapters for DataMapper, ActiveRecord, and File objects

  • High-power integration with ORM features for maximum efficiency (e.g., specify AR :include argument for eager loading associations when hydrating search results)

  • Define association facets, which return model objects as row values

  • Plugins for drop-in integration with Merb and Rails

Installation

gem sources -a http://gems.github.com
gem install outoftime-sunspot

In order to start the packaged Solr installation, run:

sunspot-solr start -- [-d /path/to/data/directory] [-p port]

If you don't specify a data directory, your Solr index will be stored in your operating system's temporary directory.

You can also run your own instance of Solr wherever you'd like; just copy the solr/config/schema.xml file out of the gem's solr into your installation. You can change the URL at which Sunspot accesses Solr with:

Sunspot.config.solr.url = 'http://solr.my.host:9818/solr'

Using Sunspot

Define an index:

class Post
  #...
end

Sunspot.setup(Post) do
  text :title, :body
  string :author_name
  integer :blog_id
  integer :category_ids
  float :average_rating, :using => :ratings_average
  time :published_at
  string :sort_title do
    title.downcase.sub(/^(an?|the)\W+/, ''/) if title = self.title
  end
end

See Sunspot.setup for more information.

Search for objects:

search = Sunspot.search Post do
  keywords 'great pizza'
  with :author_name, 'Mark Twain'
  with(:blog_id).any_of [2, 14]
  with(:category_ids).all_of [4, 10]
  with(:published_at).less_than Time.now
  without :title, 'Bad Title'
  without bad_instance # specifically exclude this instance from results

  paginate :page => 3, :per_page => 15
  order_by :average_rating, :desc

  facet :blog_id
end

See Sunspot.search for more information.

Get data from search:

search.results
search.total
search.page
search.per_page
search.facet(:blog_id)

About the API documentation

All of the methods documented in the RDoc are considered part of Sunspot's public API. Methods that are not part of the public API are documented in the code, but excluded from the RDoc. If you find yourself needing to access methods that are not part of the public API in order to do what you need, please contact me so I can rectify the situation!

Dependencies

  1. solr-ruby

  2. Java

Further Reading

Posts about Sunspot from my tumblog: outofti.me/tagged/sunspot

LICENSE:

(The MIT License)

Copyright © 2008 Mat Brown

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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